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1. WO2012006281 - METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS

Publication Number WO/2012/006281
Publication Date 12.01.2012
International Application No. PCT/US2011/042952
International Filing Date 05.07.2011
IPC
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
46
characterised by wear resisting parts, e.g. diamond inserts
56
Button-type inserts
567
with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10
Drill bits
46
characterised by wear resisting parts, e.g. diamond inserts
54
the bit being of the rotary drag type, e.g. fork-type bits
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
7
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
06
of composite workpieces or articles from parts, e.g. to form tipped tools
E21B 10/567 (2006.01)
E21B 10/54 (2006.01)
B22F 7/06 (2006.01)
CPC
B24D 99/005
E21B 10/46
Applicants
  • BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740 Houston, TX 77210-4740, US (AllExceptUS)
  • CLEBOSKI, Christopher, J. [US/US]; US (UsOnly)
  • PATEL, Suresh, G. [GB/US]; US (UsOnly)
  • SCOTT, Danny, E. [US/US]; US (UsOnly)
  • SINOR, L., Allen [US/US]; US (UsOnly)
Inventors
  • CLEBOSKI, Christopher, J.; US
  • PATEL, Suresh, G.; US
  • SCOTT, Danny, E.; US
  • SINOR, L., Allen; US
Agents
  • WELBORN, Brian, S.; Intellectual Property Cousel Baker Hughes Incorporated P.O. Box 4740 Houston, TX 77210-4740, US
Priority Data
61/361,72806.07.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS
(FR) PROCÉDÉS DE FORMATION D'INSERTS ET D'OUTILS DE FORAGE DE TERRE
Abstract
(EN)
Methods of forming inserts for earth-boring tools include providing a material in a pattern adjacent a strip, arranging a plurality of superabrasive particles proximate the pattern, and securing at least some of the plurality of superabrasive particles to the strip. The material is configured to attract or secure the plurality of superabrasive particles. Some methods may include imparting like charges to each of a plurality of superabrasive particles, placing the plurality of superabrasive particles over a strip, and securing the superabrasive particles to the strip. In some methods, a first plurality of superabrasive particles may be placed in an array between a first strip and a second strip. A second plurality of superabrasive particles may be placed in an array between the second strip and a third strip. Methods of forming earth-boring rotary drill bits include forming an insert and securing the insert to a body of the bit.
(FR)
L'invention porte sur des procédés de formation d'inserts pour des outils de forage de terre, lesquels procédés mettent en œuvre la fourniture d'un matériau dans un motif adjacent à une bande, la disposition d'une pluralité de particules super-abrasives à proximité du motif, et la fixation d'au moins certaines de la pluralité de particules super-abrasives à la bande. Le matériau est configuré de façon à attirer ou à fixer la pluralité de particules super-abrasives. Certains procédés peuvent comprendre le fait de communiquer des charges identiques à chacune d'une pluralité de particules super-abrasives, la disposition de la pluralité de particules super-abrasives sur une bande, et la fixation des particules super-abrasives à la bande. Dans certains procédés, une première pluralité de particules super-abrasives peuvent être disposées sous la forme d'un groupement entre une première bande et une seconde bande. Une seconde pluralité de particules super-abrasives peuvent être disposées sous la forme d'un groupement entre la seconde bande et une troisième bande. L'invention porte sur des procédés de formation de trépans rotatifs de forage de terre, lesquels procédés mettent en œuvre la formation d'un insert et la fixation de l'insert à un corps du trépan.
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